Water Heater Repair in Davenport, IA
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Cold groundwater and long winters wear on your water heater here
Water heaters in Scott County work against cold incoming water for eight months of the year, October through May. The colder the water coming in, the longer the burner or the heating element has to run to bring a tank up to temperature. That extra runtime adds up on the thermostat, the heating element, and the burner assembly, and it shows up first as water that used to be hot running lukewarm, or a tank that takes longer to recover between showers.
The county has seen 28 winter storms and 170 damaging wind events over the past ten years, and statewide, 15 percent of households lost power for 24 hours or more in 2024. A gas water heater with a standing pilot will keep working through an outage, but one with electronic ignition will not light again until power is back. Electric water heaters stop heating the moment the power drops and most start back up on their own once it returns.
- 17°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 15%
- of Iowa households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
A new water heater would cut about $50 a year off hot water for a typical Iowa home.
Estimates for a typical Iowa home, compared with an older unit built to the federal minimum, from EIA household energy data and Iowa fuel prices. Your home will differ.
Repair makes sense when an element, thermostat or gas valve has failed.
Replacement makes sense when the tank itself is leaking.
- Why is my water heater leaking from the bottom?
- The tank itself has likely rusted through from the inside. Once the glass lining inside a tank cracks, the steel underneath is exposed to water all day, and it corrodes until it lets go, usually at a seam or the bottom. A loose drain valve or a fitting can also leak and look like the same problem, and that part can be replaced. A cracked tank cannot be repaired. If the leak is coming from underneath the tank itself, the water heater needs to be replaced.
- Why won't the pilot light on my water heater stay lit?
- The most common cause is a worn thermocouple or flame sensor, the small part that senses the pilot flame and tells the gas valve to stay open. When it wears out, it stops sensing the flame correctly and shuts the gas off even though the pilot is lit. A dirty pilot orifice or a draft blowing out the flame can cause the same thing. A contractor can test the thermocouple and replace it if that is the cause.
- Can a tankless water heater be repaired?
- Yes, most problems with a tankless water heater are repairable. Mineral buildup on the heat exchanger is the most common issue, and it causes error codes, reduced flow, or water that will not get hot. Flushing the unit clears this in most cases. Igniters, flow sensors, and fan motors can also fail on their own and be replaced without swapping out the whole unit.